It's 1" square and flat (not bent). The face is slightly crowned, and the inside corners are SQUARE, not rounded. The center bar is sturdy and set close to the face so that it really grips the strap tightly - NO SLIPPING! It also makes the leather strap stick out the right amount. The finish is tumbled pewter to give it that adventure-worn look.
Unfortunately, it's not the cheapest buckle on the block, but if you want a better buckle on your strap than the one you have now, try one of these!